Polishing-wheel



(No Model.)

W. BAKER'.

Po'msHING WHEEL.

Patented June 15, 1886.

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UNrrED STATES PATENT OFFICE.

ALTER BAKER, OF ILION, NE\V YORK.

POLISHING-WHEEL.

SPECIFICATION forming part of Letters Patent No. 343,621, dated June 15, 1886. Applicatlon filed February 24, 1886. Serial No. 193,002. (No model.)

fo all whom it may concern.-

Be it known' that I, WALTER BAKER, of Ilion, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Polishing-Wheels, of which the following is a speciiication.

My invention relates to polishing wheels;y

and the invention consists in a novel method of constructing the wheel, as hereinafter more fully described.

Figure l is aside elevation of the wheel. Figs. 2, 3, and 4c are central sectional views showing the methods of securing the leather to the body of thewheel; and Figs. 5, 6, and7 show pieces of the leather detached, and Figs; 8 and 9 show details of construction.

1n establishments for the manufacture of guns and other articles of metal which require to be polished, it has long been customary to use polishing` wheels or disks, the periphery of which it is customary to cover with leather in some form or another; but heretofore this has been attended with more or less didiculty, and the wheels themselves can be used but a comparatively short time, without being repaired or recovered with leather.

The object of my present invention, therefore, is to produce apolishing-wheel in which the leather shall be securely fastened to the body or disk without the use of nails or metal fastenings of any kind, and shall be of such a thickness as to render the wheel very durable.A

To accomplish these results, I make my improved wheel as follows: I first provide a wooden disk or wheel, A, provided with acentral hole, in which is secured a metallic bush ing, C. This bushing is preferably provided with a flange, n, seated in a corresponding recess in the side of the disk A, as shown in Figs. 2, 3, and 4, and secured by screws, as shown in Fig. 1, though it may be secured in other ways well known to mechanics. This disk A is then put in a lathe and turned up true and even on its face and sides. I then turn in its periphery a dovetail-groove, e, as shown in Figs. 2 and 8,-or a groove of the form shown in Fig. 3, the latter being a mere modification of the former, the requisite being that the groove e, whatever its form may be, shall be narrower at its mouth than at some point below. I then provide a large number-of pieces of leather, b, cut to a width corresponding with the thickness of the disk A, and having on one end a tongue or projection, d, corresponding in length and width with the depth and width of the groove c, the form or shape of this tongue d being made to correspond with the form of the groove c, as shown in Figs. 2 and 5, and Figs. 3 and 6. As shown in Fig. 8, a traizsverse groove, g, is cut in one of the side walls of the groove c, for the purpose of enabling the tongue d of theleather pieces b to be shoved edgewise through the same into the groove e, there being asmall block, h, ofa size and shape corresponding with the transverse groove g,

provided for lilling said groove after theleathers have been applied to the disk. Having tlius prepared the disk, and the leathers b, I apply the latter to the disk by inserting their tongues d into the groove e by shoving them edgewise through the groove g, or byiuserting cess is continued until the groove e is lled all the way around the disk from one side of the notch or groove g to its opposite side,when the remaining space is illed by crowding one or more pieces b edgewise through said notch g intopositiomafter which the block h is coated with glue or eement,and forced into said notch, and held there until the glue orcement has set. In this way I cover the periphery of the disk 'A with the pieces I) of leather its entire extent, as shown in Fig. 1, and as these pieces of leather may be an inch or more in length,

and be madeto adhere firmly to each other by crowding and cementing them together, I am thus enabled to produce a wheel having a liomogeneous or uniform surface of leather an inch or more in thickness, and which,therefore, can be used for a long time, and in which the leather is securely fastened to the disk without the use of nails or other metal fastenings of anykind.

It is obvious that instead of forming the groove in the disk and the tongue on the leath- ICO er, these may be reversed, as shown in Figs.

4, 7, and 9 in which the dovetail tongue d is formed on the disk A, and the corresponding groove or notch, e', is cut in the leather pieces b, the principle and effect being the saine. Ii that form be used, a groove, y', is cnt transversely in the projecting tongue d, formed on the disk A, as shown in Fig. 9, and a correspondingshaped block, 7L', is provided to fill the same at completion. In this case, after the leather pieces have been applied all around the disk, except at the notch, the block 7L is coated with glue and placed in the notch c of the iinal piece or pieces of leather used to fill up the gap, when the piece, with the block la' in its notch c', is forced cdgeWise into the remaining spaceor gap, thereby causing the block h to fill the notch g. It is of course understood that, if desired, as it may be in wheels of small diameter, or if the leather pieces be made very long, they may be beveled on their adjoining faces, either by shaving ol'f a portion on one side, or by compressing the leather While moist; but this will not be necessary in Wheels of the ordinary size or for general use. XVhile I have shown two forms ofthe grooves and tongues as illustrating my invention, I do not limit myself` to them, as it is obvious they may be greatly varied in forni and still be the same in effect, the gist of myinvention in this particular being in uniting the leather to the disk by an interlocking joint, substantially in the manner described, so that the whole body of leather, or all the pieces composing the leather facing,shall each and all be securely fastened to the disk as well as to each other.

I am aware that it has been proposed to make an elastic-belt pulley by building up a rim composed of several rows of pieces ol` leather held in place by a series of dovetailed metal rings secured or formed upon a series of transverse ribs on the ends of the spokes of the pulley; and also that a patent has been granted for a sheave for Wire ropes in which the groove in its periphery or rim is partially filled with pieces of rawhide and pieces of leather, rubber, or other substance, to prevent the metal rim of the sheave from cutting the Wire rope; but neither of these pulleys nor sheaves are adapted to be used as polishing- Wheels, and I do not claim such a device; but,

Having fully described my invention,what I do claim isl. The herein described polishing wheel, consisting ol'` the Wooden disk A, with the pieces Z of leathersecured thereto by an inten locking joint and cement, substantially as dcscribed.

' 2. Apolishing-Wheelcomposedof thewooden disk A, having 'its periphery covered with pieces of leather set on edge, and secured to the disk by an interlocking-joint, and by being cemented to the disk and to eachother, substantiall y as described.

The disk A,provided\vith the circumferential groove e, and lateral notch or opening g, in combination with the pieces b of leather, and the block h, or the equivalents thereof, substantially as herein shown and described.

XVALTER BAKER.

Viluiesses:

JonN .TAY HANNAH, W'. G. Sunni., l). Lewis. 

